Cabinet

ABSTRACT

A cabinet for refrigerating electronic equipment positioned in a compartment of a cabinet body, said cabinet further being arranged with a cabinet door for closing an access opening to said compartment; at least one partitioning means for partitioning the compartment into at least two sub-compartments, wherein the at least two sub-compartments are in fluid communication; a cooling system arranged in the cabinet door, the cooling system being in fluid communication with the compartment via a fluid outlet and a fluid inlet, the cooling system comprising a fan for discharging cooling fluid via the fluid outlet into at least a first sub-compartment of said at least two sub-compartments and for exhausting fluid via at least a second sub-compartment of said at least two sub-compartments through the fluid inlet; and at least a gasket for abutting, upon closing the cabinet door, the at least one partitioning means to said cabinet door, thereby hindering fluid to pass between the sub-compartments at the cabinet door, wherein the at least one gasket abuts the at least one partitioning means which partitions the at least one first sub-compartment and the at least one second sub-compartment to said cabinet door.

FIELD OF THE INVENTION

The present invention relates to the field of refrigerating electronicequipment. In particular, the invention relates to a cabinet for therefrigeration of electronic equipment positioned therein.

BACKGROUND OF THE INVENTION

For the housing of electronic equipment such as e.g. batteries, servers,processors, measuring equipment, telecommunication equipment and opticalfibers, cabinets are well known. The benefits of these enclosures arenumerous, not only considering an improved order of the equipment, butalso due to aspects regarding safety such as protection from theft,fire, leakage and so on. Cabinets are moreover used for shielding orisolating the electronic equipment from external environments having adeteriorating effect thereon. Also, the cabinets may be arranged to coolthe electronic equipment. The cabinets may be adapted for an external,outdoor use, where they are typically constructed to be weatherproof soas to minimize the risk of equipment damage.

The improvements in design and construction of electronics,telecommunications and batteries have lead to a development strivingtowards smaller equipment with an increased power. For batteries, it isknown to those skilled in the art that high temperatures within theenclosure tend to decrease the service life of the batteries,necessitating costly servicing and/or battery replacements. In otherwords, a battery operating in a high-temperature environment may haveits lifetime shortened.

One example of an outdoor cabinet to be used in a telecommunicationsystem is disclosed in patent document SE 518304. A climate controllingdevice is provided in the door and fans are arranged above each of theelectronic units situated in the interior of the cabinet, wherein eachof the fans removes and forwards heat generated by the units to aninternal channel system. The heated air is transported to a heatexchanger which absorbs and forwards the heat via an external flow ofair to the ambient air outside the cabinet. Additional fans blow thecooled air into a space between the door and the cabinet body in frontof the electrical equipment.

Another example of a prior art cabinet for controlling the environmentalconditions within a telecommunications base station is disclosed inpatent document GB 2277767. The temperature of the air within the basestation is controlled by apparatus incorporated in or on a door. In use,fans draw external air into the interior of the base station through alouvered panel. The external air passes across the heat exchanger, andthe internal air from within the base station is also drawn across theheat exchanger, the air leaving the base station through a second panel.

However, there are problems related to the aforementioned structures.The arrangements disclosed do not provide a controlled and evenlydistributed cooling or refrigeration throughout the interior of thecabinet.

SUMMARY OF THE INVENTION

It is an object of the present invention to mitigate the above problemsand to provide a cabinet that provides an improved climate control ofthe electronic equipment contained therein.

This and other objects are achieved by providing a cabinet having thefeatures defined in the independent claim. Preferred embodiments aredefined in the dependent claims.

According to a first aspect of the present invention, there is provideda cabinet for refrigerating electronic equipment positioned in acompartment of a cabinet body. The cabinet is further arranged with acabinet door for closing an access opening to said compartment. When thecabinet door is closed, the cabinet body together with the closedcabinet door encloses the compartment. It is understood that therefrigerating effect can only be achieved when the cabinet door isclosed. Also, opening the cabinet door will uncover the access opening,whereby electronic equipment may be positioned therein or, if theelectronic equipment is already positioned therein, the electronicequipment or a part thereof may be removed and/or replaced with otherelectronic equipment.

The term “electronic equipment” should, in this context, be construed ase.g. batteries, servers, processors, measuring equipment,telecommunication equipment, optical fibers or the like. Moreover, theelectronic equipment for which the cabinets are provided have differentspecific operational temperature intervals, e.g. 0-45° C. In otherwords, the electronic equipment is intended to operate within a specificoperational temperature interval suitable for the function thereof.Also, in addition to the refrigeration of the electronic equipment, someelectronic equipment generate heat which needs to be compensated for.

Also, the cabinet is further arranged with at least one partitioningmeans for partitioning the compartment into at least twosub-compartments. Thus, the space of the compartment is partitioned intoat least two smaller compartment spaces, i.e. two sub-compartments. Theat least two sub-compartments are in fluid communication, i.e. thepartitioning means provide an opening or openings between thesub-compartments. In other words, the partitioning means are arrangedsuch that the sub-compartments are in fluid communication.

It should noted that the term “partitioning means” as used herein isintended to refer to at least a partition or wall or the like whichseparates or divides the compartment into sub-compartments. Thus,partitioning means may for example be shelves, racks, plates, boards orthe like.

Moreover, the cabinet is further arranged with a cooling system, whereinthe cooling system is arranged in the cabinet door. The cooling systemis in fluid communication with the compartment via a fluid outlet and afluid inlet. Thus, the fluid inlet and the fluid outlet are in fluidcommunication with the at least two sub-compartments. The cooling systemcomprises a fan for discharging cooling fluid via the fluid outlet intoat least a first sub-compartment of the at least two sub-compartments.Also, the fan exhausts fluid via at least a second sub-compartment ofthe at least two sub-compartments through the fluid inlet. Thus, the atleast one first sub-compartment is a sub-compartment into which coolingfluid is discharged, whereas the at least one second sub-compartment isa sub-compartment through which the cooling fluid is exhausted. The fansimultaneously causes both a discharging effect and an exhaustingeffect, thereby contributing to generate a flow inside the compartment.During operation the fan discharges cooling fluid, i.e. exhausted fluidwhich has been cooled by the cooling system, into and through the atleast one first sub-compartment. Thereafter, the cooling fluid continuesuntil it reaches the at least one second sub-compartment and thereaftercontinues via the fluid inlet back to the cooling system which againcools the exhausted fluid for further discharge. It is understood thatif the electronic equipment generates heat, the cooling system isarranged to compensate for this additional heat, thereby providing anoptimal operation temperature for the electronic equipment.

It should be noted that the term “discharging cooling fluid” as usedherein is intended to refer to a delivery of a cooling fluid into aconstrained space, thereby generating a flow in the space. Analogously,the term “exhausting fluid” as used herein is intended to refer to anemptying of a constrained space. In other words, fluid is drawn from aspace thereby generating a low pressure or under-pressure in that space.

Also, the cabinet is further arranged with at least one gasket forabutting, upon closing the cabinet door, the at least one partitioningmeans to said cabinet door. Furthermore, the at least one gasket abutsthe at least one partitioning means which partitions the at least onefirst sub-compartment and the at least one second sub-compartment tosaid cabinet door. Thus, at least that or those partitioning means whichpartitions the at least one second sub-compartment from the at least onefirst sub-compartment, abuts or abut the cabinet door by means of the atleast one gasket, upon closing the cabinet door. When the cabinet dooris closed, the at least one gasket is in an abutting position with boththe cabinet door and the partitioning means thereby hindering, at thecabinet door, fluid to pass between the at least first and secondsub-compartments. Thus, when the cabinet door is closed, the at leastone partitioning means and the at least one gasket provide a fluidhindering effect at least along that or those partitioning meansprovided between the at least one first sub-compartment and the at leastone second sub-compartment, where the partitioning means faces theclosed cabinet door. In other words, fluid is hindered to enter the atleast one second sub-compartment from adjacent sub-compartments at theregion where the partitioning means faces the closed cabinet door.

In the case where the cabinet is arranged with two or more partitioningmeans, i.e. the compartment is partitioned into three or moresub-compartments, gaskets may be arranged for abutting each of thepartitioning means to said cabinet door when closed. It is alsounderstood that gaskets may be arbitrarily arranged as long as thegasket or gaskets at least abuts the partitioning means of the at leastone second sub-compartment to the closed cabinet door.

The term “gasket” should, in this context, be construed as an elementfor making a joint fluid-tight or at least hinder fluid to pass thejoint. Thus, herein the gasket is used for making the joint between thedoor and the partitioning means. The gasket is preferably an elastomericstrip, border, edging or the like.

Thus, the present invention is based on the idea of using at least onegasket in combination with at least one partitioning means whichpartitions the compartment into sub-compartments which are in fluidcommunication. The use of the gasket in combination with saidpartitioning means makes it possible to control a distribution ofrefrigerating fluid throughout said compartment in an advantageouslyaccurate and reliable manner. Thereby, the discharge of the coolingfluid from the cooling system will be supplied to the compartment of thecabinet with a minimized leakage to at least the second sub-compartmentor sub-compartments at the cabinet door when closed. This minimizationof leakage will ensure that the at least one first sub-compartment intowhich cooling fluid is discharged will be supplied with a proper amountof cooling fluid whereby an accurate and reliable refrigeration of eachsub-compartment is achieved. Also, since the at least one secondsub-compartment, via which fluid is exhausted from, is partitioned fromthe at least one first sub-compartment, via which cooling fluid isdischarged, any unwanted “short-circuiting” flow from the fluid outletdirectly to the fluid inlet at the cabinet door is reduced.

According to an embodiment of the invention, the at least twosub-compartments may be vertically displaced, i.e. provided on top ofeach other within the cabinet. In this embodiment, the at least onepartitioning means for partitioning the compartment into at least twosub-compartments are arranged horizontally. It is understood that thenumber of sub-compartments may be varied dependent on the size of theelectronic equipment to be positioned therein. The size of thesub-compartment is adapted to the size of the electronic equipment unitto be positioned therein. It is also understood that thesub-compartments within the same cabinet may be of different sizes.

Alternatively, the at least two sub-compartments may be horizontallydisplaced, i.e. provided side-by-side within the cabinet. In thisembodiment, the at least one partitioning means for partitioning thecompartment into at least two sub-compartments may be arrangedvertically.

Alternatively, any combination of vertical and horizontal displacementof the at least two sub-compartments within the cabinet is alsofeasible. As an example, at least two sub-compartments may behorizontally displaced, i.e. provided side-by-side within an upperportion of the cabinet whereas in a lower portion of the cabinet, atleast two sub-compartments may be vertically displaced, i.e. provided ontop of each other.

It is also understood that the fluid outlet and fluid inlet aredisplaced in analogy to the displacement of the sub-compartments, e.g.that a cabinet having vertically displaced sub-compartments is providedwith vertically displaced fluid outlets.

Analogously, in an embodiment where the at least two sub-compartmentsare horizontally displaced, the fluid outlet openings may behorizontally displaced such that the relative positions between thefluid outlet openings arranged in the cabinet door at positions facing afirst of at least two sub-compartments and the at least one firstsub-compartment is substantially identical to the relative positionsbetween the fluid outlet openings arranged in the cabinet door atpositions facing a second of at least two sub-compartments and the atleast one second sub-compartment.

According to an embodiment, the fluid outlet comprises a plurality offluid outlet openings which are arranged in the cabinet door atpositions facing the at least one first sub-compartment. By theplurality of fluid outlet openings, the discharge of cooling fluid viathe fluid outlet into the first sub-compartment is improved. One aspectof the improvement is that the cooling fluid may be discharged firstafter the fluid has passed within the cabinet door to the openingsfacing the at least one first sub-compartment.

Another aspect of the improvement is that a plurality of fluid outletopenings divides the discharge into a plurality of small discharge flowswhich spread the discharge into the at least one first sub-compartment.The size and the formation of the fluid outlet openings may be formedand/or arranged to achieve a predetermined spread and velocity of thedischarged cooling fluid. The realization of the fluid outlet openingsin the cabinet door may be holes, louvers, grilles, gratings or thelike.

In an embodiment, the plurality of fluid outlet openings is arrangedsuch that the cooling fluid is evenly distributed into the at least onefirst sub-compartment. The plurality of fluid outlet openings may beequally spaced apart in the cabinet door within an area facing the atleast one first sub-compartment when the door is closed. In other words,the plurality of fluid outlet openings may be symmetrically placedfacing the at least one first sub-compartment when the cabinet door isclosed. Alternatively, the plurality of fluid outlet openings may bearranged such that they face an intermediate space, i.e. the spacebetween the partitioning means and the electronic equipment, of thesub-compartment which is not occupied by electronic equipment, therebyensuring that the discharged cooling fluid may easily enter andpenetrate the at least one first sub-compartment. One benefit of anevenly distributed cooling fluid is to provide a uniform cooling of thesub-compartment. More specifically, the distribution may provide ahomogeneous cooling temperature in the at least one sub-compartment,avoiding diverging temperature conditions within the sub-compartment.Another benefit of an evenly distributed cooling fluid is the enhancedpossibility of an evenly distributed flow through the sub-compartments,thereby avoiding fluid convection which may worsen the coolingperformance of the cabinet.

Moreover, the plurality of fluid outlet openings may be arranged suchthat the cooling fluid is individually distributed into the at least onefirst sub-compartment. This is advantageous when different electronicequipment or equipment with different sizes are positioned withindifferent sub-compartments of the cabinet body, such that the coolingfluid may be discharged individually into the sub-compartments. As anexample, a cooling fluid may be discharged through small holes in one ofthe at least one first sub-compartment, thereby creating a higher fluidvelocity which may for example be in adaptation for the electronicequipment provided in that sub-compartment. In another of the at leastone first sub-compartment, a cooling fluid may be discharged through bigholes, thereby creating a lower fluid velocity, which may for example bein adaptation for the electronic equipment provided in thatsub-compartment.

In an embodiment, the fluid inlet comprises at least one fluid inletopening arranged in the cabinet door at a position facing the at leastone second sub-compartment. This embodiment further enhances theexhausting effect at the fluid inlet.

According to an embodiment, the total area of the plurality of fluidoutlet openings is less than that of the at least one fluid inletopening. This will increase the fluid velocity from the outlet openingsinto the sub-compartments.

In an embodiment, the at least one first sub-compartment is arranged atone end of the compartment and the at least one second sub-compartmentarranged at an opposite end, thereby allowing fluid to flow from one endof the compartment to the opposite end thereof. By this arrangement, thedistribution of cooling fluid throughout the compartment is therebyenhanced even further. The fluid inlet and fluid outlet are thus alsoarranged at opposite ends of the door.

According to an embodiment, the at least one partitioning means providesa hermitical partitioning at least at the end of the at least onepartitioning means facing the cabinet door. Thus, at least that portionof the at least one partitioning means which is adjacent to the closedcabinet door provides an hermetical partitioning between the thereofpartitioned sub-compartments. The hermetical partitioning hinders anyfluid communication to pass between two adjacent sub-compartments at thecabinet door. By this, any leakage between the sub-compartments at thedoor is reduced even further, thereby enhancing the cooling andrefrigeration performance of the cabinet.

In an embodiment, the sub-compartments are in fluid communication alonga rear side of the compartment opposite the access opening. This meansthat each flow from all sub-compartments are reassembled along a rearside, thereby collecting the individual flows from each and everysub-compartment before entering a final sub-compartment which forwardsthe collected or gathered flow from the rear side of the compartment andthrough the inlet into the cooling system at a front side. This rearside fluid communication ensures that the cooling flow passes thecompartment from the front side, i.e. the side where the door enclosesthe access opening, to the backside, thereby enhancing the distributionof cooling fluid throughout the compartment even further.

In an embodiment, the at least one gasket may be attached to the atleast one partitioning means for abutting the cabinet door upon closurethereof. This is advantageous in the cases cabinet doors need to bereplaced, as the replacing cabinet doors may not have to be providedwith any gasket.

Alternatively, the at least one gasket may be attached to the cabinetdoor for abutting the at least one partitioning means upon closure ofthe cabinet door. This arrangement may be preferred when loading orunloading the cabinet with electronic equipment, as the attachment ofthe gasket to the door instead of on the partitioning means may providean easier access to the opening of the cabinet.

In yet another embodiment, the at least one gasket comprises at least afirst gasket element attached to the cabinet door and a second gasketelement attached to the at least one partitioning means, wherein thefirst gasket element and the second gasket element are arranged toco-operate with each other upon closure of the cabinet door. Thus, whenthe door is closed, the first gasket element and the second gasketelement are in a fluid-tight contact with each other.

According to an embodiment, the cabinet is arranged with partitioningmeans for partitioning the compartment into a plurality ofsub-compartments being in fluid communication, and wherein the fanexhausts fluid via one sub-compartment and discharges cooling fluid intoall other of said plurality of sub-compartment. Thus, the fan of thecooling system discharges cooling fluid via the fluid outlet into all ofsub-compartments except one sub-compartment, which fluid is exhaustedvia. In other words, fluid is exhausted via one sub-compartment andcooling fluid is discharged into all of the other sub-compartments ofthe plurality of sub-compartments. This further enhances thedistribution of refrigerating fluid to all parts of the compartmentduring operation.

In an embodiment, the cabinet is arranged with at least two compartmentswhich are isolated from each other upon closure of the cabinet door.According to this embodiment, the at least two compartments may be haveclimates substantially independent of each other. This may have thefurther advantage that different electronic equipment having differentoperational temperature intervals may be positioned in separatedcompartments, thereby providing the possibility of a more selectedclimate control, e.g. by providing a first temperature within a firstcompartment and a second temperature in a second compartment, the firstand the second temperatures being different.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other aspects of the present invention will now be describedin more detail, with reference to the appended drawings, wherein:

FIG. 1 is a front view of a cabinet with the cabinet door open;

FIG. 2 is a side cross-sectional view of a cabinet with the cabinet doorclosed according to an embodiment of the present invention;

FIG. 3 is a perspective view of a cabinet with the cabinet door open;and

FIG. 4 is a perspective view of a cabinet with the cabinet doors open.

DETAILED DESCRIPTION

In the following description, the present invention is described withreference to a cabinet for refrigerating electronic equipment positionedwithin a compartment of a cabinet body.

Referring to FIG. 1, a cabinet 1 for refrigerating electronic equipmentis shown. The cabinet 1 comprises a cabinet body 2, defined by a topportion, a bottom portion, a back portion and two side portions, whichtogether form a vertically elongated rectangular parallelepiped. Theisolation of the cabinet body 2 is adapted for an external, outdoor use,as the cabinet body 2 is typically constructed to be weatherproof so asto minimize the risk of damage of the electronic equipment positionedtherein. The cabinet body 2 encloses a compartment 3, wherein theelectronic equipment is positioned.

A cabinet door 4 for closing or opening an access opening 5 isvertically hinged on a vertically elongated edge 6 between a sideportion and the access opening 5 of the cabinet body 2. The cabinet door4 which opens in a clockwise direction and closes in a counter-clockwisedirection, is shown in FIG. 1 in an open position. Arranged in thecabinet door 4 is a cooling system 7 (not illustrated) in fluidcommunication with the compartment 3. The cooling system 7 is providedbehind a plate 31 in the cabinet door 4, through which plate 31 thefluid communication is realized by a fluid outlet 8. The fluid outlet 8is arranged as circular holes, the holes providing a fluid communicationbetween the cooling system 7 and the compartment 3. The circular holesare distributed horizontally in three rows with holes arranged in anupper row 8 a, a center row 8 b and a lower row 8 c. The rows areseparated vertically, wherein the upper row 8 a is provided at the topof the cabinet door 4, the lower row 8 c is provided in the approximatecenter of the cabinet door 4, and the center row 8 b is providedapproximately between the upper row 8 a and the lower row 8 c. A fluidinlet 9 is arranged at the base of the cabinet door 4, the fluid inlet 9providing a fluid communication between the cooling system 7 and thecompartment 3. The fluid inlet 9 is an opening defined by the plate 31and an interior surface (not indicated) of the door 4. The inlet issubstantially rectangular and elongates horizontally along the width ofthe door. The base of the rectangle is horizontal, whereas the top ofthe rectangle is triangular-shaped, yielding a slimmer waist at thecenter of the rectangle to form an hourglass shape. The triangular shapeof the plate 31 concentrates the possible formation of condensed fluidfrom the cooling system 7 such that a drainage of the condensed fluid isfacilitated.

A plurality of batteries 30 is arranged in the compartment 3 in fourvertically separated sub-compartments, each sub-compartment beingprovided with horizontally arranged batteries. The sub-compartments arearranged as an upper sub-compartment 10 a, an upper centersub-compartment 10 b, a lower center sub-compartment 10 c and a lowersub-compartment 10 d. The upper sub-compartment 10 a is provided at thetop of the compartment 3, wherein the upper center sub-compartment 10 bis provided between the approximate center of the compartment 3 and theupper sub-compartment 10 a, the lower center sub-compartment 10 c isprovided between the approximate center of the compartment 3 and thelower sub-compartment 10 d, and the lower sub-compartment 10 d isprovided at the base of the compartment 3.

A horizontally mounted gasket 11 is provided on the interior of thecabinet door 4 such that upon closing the cabinet door 4, the gasket 11abuts horizontally the mounted partitioning means 12, thereby hinderinga fluid to pass the partitioning means 12 at the cabinet door 4.

FIG. 2 shows a side cross-sectional view of the cabinet 1 wherein thecabinet door 4 of the cabinet body 2 is closed, thereby providing ahermetical enclosure of the interior of the cabinet 1 from the outsideambience. Within the cabinet 1 the fluid passes a circulating fluid path13. In the cabinet door 4, the path 13 elongates vertically from thebase of the cabinet door 4 to the top of the door 4. From the cabinetdoor 4, the path is divided from the three vertically separated sets offluid outlet openings 8 a, 8 b, 8 c between the cooling system 7 and thecompartment 3. The circulating fluid path 13 extends from the outlet 8into the three upper sub-compartments 10 a, 10 b, 10 c arranged in thecompartment 3. The sub-compartments 10 a, 10 b, 10 c, 10 d are separatedvertically by the partitioning means 12, the sub-compartments 10 a, 10b, 10 c, 10 d and the partitioning means 12 extending horizontally fromthe fluid outlet 8 to a vertically elongated rear space portion 14,adjacent to the back portion 15 of the cabinet body 2. The partitioningmeans comprise hereby shelves. The three sub-compartments 10 a, 10 b, 10c provide a divided fluid path 13, passing from the fluid outlet 8 tothe rear space portion 14. The divided fluid path 13, substantiallyparallel to an axis between a sub-compartment inlet and asub-compartment outlet, is reassembled at the rear space portion 14,wherein the circulating fluid path 13 is directed downwards. The fourthsub-compartment 10 d, provided at the base of the cabinet 1, directs thefluid path 13 from the rear space portion 14 towards the fluid inlet 9.

The cooling system is provided with a heat exchanging device 16 (notshown) which is arranged in the cabinet door 4. The heat exchangingdevice 16 is arranged in the door for exchanging heat from thecompartment to a vertically elongated duct 17 provided along an outerportion of the cabinet door 4. The duct 17 elongates parallel to thepart of the circulating fluid path 13 within the cabinet door 4, theduct 17 and the path 13 being separated. A duct inlet 18 is provided atthe base of the cabinet door 4, providing a fluid communication betweenthe outside ambience and the base of the duct 17. A duct outlet 19 isprovided at the top of the cabinet door 4, providing a fluidcommunication between the top of the duct 17 and the outside ambience. Acompressor 20 is provided in the cabinet door 4 at the base of the ductinlet 18.

The part of the circulating fluid path 13 within the cabinet door 4passes the heat exchanging device 16 which cools the fluid from theinlet 9. A fan 23 is provided which sucks the cooling fluid from belowand blows the fluid upwards, such that the cooling fluid is dischargedthrough the fluid outlet openings 8 a, 8 b and 8 c, provided above thefan 23. Thus, the fluid is distributed along the circulating fluid path13 from the apertures 8 a, 8 b, 8 c between the cooling system 7 and thecompartment 3. The fluid passes through the sub-compartments 10 a, 10 band 10 c to the rear space portion 14, and is reassembled at the rearspace portion 14, wherein the fluid is directed downwards. From the baseof the rear space portion 14 towards the fluid inlet 9, the fluid passesthrough the fourth sub-compartment 10 d and via the fluid inlet opening9.

In FIG. 3, a cabinet 1 is shown in a perspective view with the cabinetdoor 4 open. The cabinet body 2, shaped as a rectangular parallelepiped,has an interior which is divided by a horizontally mounted shelf 24 intoa lower compartment 3 and an additional upper compartment 40 providedabove the compartment 3. The shelf 24 is provided approximately in themiddle of the cabinet body 2. In the compartment 3, batteries 25 arearranged in two vertically separated sub-compartments 25 a and 25 b,each sub-compartment being provided with 4 batteries arranged along ahorizontal axis. The sub-compartments 25 a, 25 b are partitioned by ahorizontally elongated shelf 26.

A cooling system 7 is provided within the lower part of the cabinet door4, the system being in fluid communication with the compartment 3 whenthe cabinet door 4 is closed. The communication is realized by a fluidoutlet 8 and a fluid inlet 9, wherein the fluid outlet 8 is arranged ascircular holes in the plate 31, the holes providing a fluidcommunication between the cooling system 7 and the lower compartment 3.The holes are distributed horizontally in a row at the approximatecenter of the cabinet door 4. The inlet 9 is arranged at the base of thecabinet door 4, the inlet 9 providing a fluid communication between thecooling system 7 and the compartment 3 when the cabinet door is closed.In the upper part of the cabinet body 2, the additional uppercompartment 40 is provided with another type of electronic equipment 27.The upper and the lower compartments 3 a, 3 b are separated by the shelf24, thereby providing two independently systems. For example, thecompartment 3 provides a refrigerating compartment whereas theadditional upper compartment 40 is a non-refrigerating compartmenthermetically sealed, when the door is closed, from the lower compartment3.

Shown in a perspective view in FIG. 4 is a cabinet wherein twocompartments 3 a, 3 b are provided side-by-side in the cabinet body 2. Avertically arranged wall 28 in the center of the cabinet separates thetwo compartments 3 a, 3 b.

Two cabinet doors 4 a, 4 b are vertically hinged on the cabinet body 2at opposite sides of the access openings 5 a and 5 b, respectively. Theleftmost door 4 a opens in a clockwise direction, and closes in acounter-clockwise direction. Analogously, the rightmost door 4 b opensin a counter-clockwise direction, and closes in a clockwise direction.The two doors 4 a, 4 b close at the vertical wall portion 28. The twodoors 4 a, 4 b in FIG. 4 are both shown in an open position. Providedwithin each cabinet door 4 a, 4 b is a cooling system such that thecabinet provides two cooling systems 7 a, 7 b. By this, two compartments3 a, 3 b with individual refrigerating operations may be provided,adapted to provide an improved cabinet refrigeration.

Even though the invention has been described with reference to specificexemplifying embodiments thereof, many different alterations,modifications and the like will become apparent for those skilled in theart. The described embodiments are therefore not intended to limit thescope of the invention, as defined by the appended claims. For example,the shape of the fluid inlet 9 and the fluid outlet 8 may take on anyother geometrical shapes than those depicted. Louvers, grilles, gratingsor the like are all possible embodiments of the fluid inlet 9 and fluidoutlet 8. Moreover, the rectangular parallelepiped shape of the cabinetbody 2 may instead be of e.g. cubic or cylindric shape. Furthermore, thedoor 4 may be opened clockwise or anti-clockwise, upwards or downwards,dependent on how the door is hinged to the cabinet body 2.Alternatively, the door may instead be replaced by a closing means forclosing the access opening 5, the closing means being provided withfastening means such as screws, locking means or the like.

Further, any number and placement of sub-compartments within a cabinetbody 2 may be feasible. As an example, a cabinet body 2 may have thestructure of the body depicted in FIG. 4 with two compartments 3 a, 3 bside-by-side, but wherein one or both of the compartments may be dividedas depicted in FIG. 3 with a horizontally mounted shelf 24.

The fan 23 in FIG. 2, may alternatively be substituted by a turbine,pump, or the like, to generate a flow of the fluid within the cabinetdoor 4. Moreover, instead of a cabinet body 2 with the shape of avertically elongated rectangular parallelepiped, the parallelepiped maybe elongated horizontally. In this embodiment, the fluid outlet 8 mayinstead of being provided as rows be provided as columns, and,consequently, instead of being separated vertically be separatedhorizontally. In combination, or independently of this embodiment, thevertically hinged door 4 may instead be hinged horizontally on ahorizontally elongated edge between the top portion and the accessopening 5 of the cabinet body 2. Furthermore, the gasket 11 as disclosedin FIG. 1 may not only be provided in the cabinet door 4 but also on thepartitioning means 12 at the access opening 5 such that a first gasketelement provided on the door 4 and a second gasket element provided onthe partitioning means 12 abut upon closing the door 4 such that a fluidis hindered to pass the partitioning means 12.

Moreover, any other heat exchanger 16 than in the embodiment disclosedin FIG. 2 may be feasible. As an alternative, parts of the disclosedheat exchanger elements or additional auxiliary elements may be providedoutside the cabinet body 2.

1. A cabinet for refrigerating electronic equipment positioned in acompartment of a cabinet body, said cabinet further being arranged with:a cabinet door for closing an access opening to said compartment; atleast one partitioning means for partitioning the compartment into atleast two sub-compartments, wherein the at least two sub-compartmentsare in fluid communication; a cooling system arranged in the cabinetdoor, the cooling system being in fluid communication with thecompartment via a fluid outlet and a fluid inlet, the cooling systemcomprising a fan for discharging cooling fluid via the fluid outlet intoat least a first sub-compartment of said at least two sub-compartmentsand for exhausting fluid via at least a second sub-compartment of saidat least two sub-compartments through the fluid inlet; and at least onegasket for abutting, upon closing the cabinet door, the at least onepartitioning means and said cabinet door, thereby hindering fluid topass between the sub-compartments at the cabinet door.
 2. The cabinetaccording to claim 1, wherein the fluid outlet comprises a plurality offluid outlet openings which are arranged in the cabinet door atpositions facing the at least one first sub-compartment of said at leasttwo sub-compartments.
 3. The cabinet according to claim 2, wherein theplurality of fluid outlet openings are arranged such that the coolingfluid is evenly distributed into the at least one first sub-compartmentof said at least two sub-compartments.
 4. The cabinet according to claim1, wherein the fluid inlet comprises at least one fluid inlet openingwhich is arranged in the cabinet door at a position facing the at leastone second sub-compartment of said at least two sub-compartments.
 5. Thecabinet according to claim 4, wherein the total area of the plurality offluid outlet openings is less than that of the at least one fluid inletopening.
 6. The cabinet according to claim 1, wherein the at least onefirst sub-compartment of said at least two sub-compartments are arrangedat one end of the compartment and the at least one secondsub-compartment of said at least two sub-compartment is arranged at anopposite end, thereby allowing fluid to flow from one end of thecompartment to the opposite end thereof.
 7. The cabinet according toclaim 1, wherein the at least one partitioning means provides ahermitical partitioning at least at the end of the at least onepartitioning means facing the cabinet door.
 8. The cabinet according toclaim 1, wherein the at least two sub-compartments are in fluidcommunication along a rear side of the compartment opposite the accessopening.
 9. The cabinet according to claim 1, wherein the at least onegasket is attached to the at least one partitioning means for abuttingthe cabinet door upon closure thereof.
 10. The cabinet according toclaim 1, wherein the at least one gasket is attached to the cabinet doorfor abutting the at least one partitioning means upon closure of thecabinet door.
 11. The cabinet according to claim 1, wherein the at leastone gasket comprises at least a first gasket element attached to thecabinet door and a second gasket element attached to the at least onepartitioning means, wherein the first gasket element and the secondgasket element are arranged to co-operate with each other upon closureof the cabinet door.
 12. The cabinet according to claim 1, wherein saidcabinet is arranged with at least one partitioning means forpartitioning the compartment into a plurality of sub-compartments beingin fluid communication, and wherein the fan exhausts fluid via onesecond sub-compartment and discharges cooling fluid into all other ofsaid plurality of sub-compartment.
 13. The cabinet according to claim 1,wherein the cabinet is arranged with at least two compartments which areisolated from each other upon closure of the cabinet door.